Keystones — Lintel
Five GCSE retrieval questions · 15 December 2023 · mathsvault.uk/keystones
-
1. Number
What is the missing number: 78 + ? = 192
Answer: 114 -
2. Algebra
Factorise: 9x² + 4x
Answer: x(9x + 4) -
3. Geometry
Adjacent = 18cm, hypotenuse = 23cm. Find the angle
Answer: 38.5° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 44, 26, 43, 14, 47, 43, 28
Answer: 35